From e8260a3e84dc08b944cdc5ed02467aa967ded722 Mon Sep 17 00:00:00 2001
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sun, 7 Jul 2019 07:12:14 +0100
Subject: [PATCH] add enough to "extra" exponent to cover FP64 to FP16 fcvt

---
 src/ieee754/fpcommon/fpbase.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ieee754/fpcommon/fpbase.py b/src/ieee754/fpcommon/fpbase.py
index 2ef543d4..0e057f9e 100644
--- a/src/ieee754/fpcommon/fpbase.py
+++ b/src/ieee754/fpcommon/fpbase.py
@@ -77,7 +77,7 @@ class FPNumBaseRecord:
         else:
             self.m_extra = 0
         if e_extra:
-            self.e_extra = 3
+            self.e_extra = 6 # enough to cover FP64 when converting to FP16
             e_width += self.e_extra
         else:
             self.e_extra = 0
-- 
2.30.2